ST. LOUIS (KSDK) – The Cardinals have officially placed pitcher Michael Wacha on the disabled list, citing a shoulder injury.

The right-hander should be out for at least two weeks. Wacha told NewsChannel 5's Frank Cusumano that he has been dealing with a stress reaction in his shoulder. He first noticed the pain four or five starts again, but has never dealt with soreness like it before.

Jaime Garcia is also on the disabled list with shoulder injuries. Starting pitcher Joe Kelly is also on the DL – meaning that 40 percent of the Cardinals' pitching staff is out of commission.